NCP1379DR2G ON Semiconductor, NCP1379DR2G Datasheet - Page 3

• Manufacturer Part Number: NCP1379DR2G
• Description: IC CTLR QUASI CURRENT MODE 8SOIC
• Manufacturer: ON Semiconductor

Specifications of NCP1379DR2G

• Output Isolation: Isolated
• Voltage - Input: 9 ~ 28 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Duty Cycle (max): 6.7 %
• Mounting Style: SMD/SMT
• Switching Frequency: 65 KHz
• Operating Supply Voltage: 8.3 V to 12.3 V
• Supply Current: 1.7 mA
• Maximum Operating Temperature: + 125 C
• Fall Time: 25 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 40 ns
• Synchronous Pin: No
• Topology: Quasi-Resonant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rsense
ZC D
La ux
CS
FB
Ct
Rpullup
VDD
ICt
VDD
/ 4
LE B 2 is shorter than LE B 1
I
peak(VCO)
LEB 2
LEB 1
10 V
ESD
C t s e tpoint
DRV
Discharge
= 17.5 % V
C t
SS end
Vth
SS end
V ILIMIT
3 ms blanking
ILIMIT
+
+
−
−
OPP
The 40 ms Time Out is active
only during s oft−s ta r t
SS end
INTERNAL CIRCUIT ARCHITECTURE
Soft-start
Figure 2. Internal Circuit Architecture
Time Out
Time Out
V CS(stop )
40 ms
5 ms
Soft-start end ? then 1
else 0
de ma g
LOGIC BLOCK
http://onsemi.com
−
+
+
−
+
−
VDD
PW Mreset
3
I pFl a g
Cs S top
S
R
DRV
Q
Q
BO r e se t
latch
Q
Q
gr a nd
reset
R
S
gr a nd
noise delay
reset
VDD
V
noi s e de l a y
CC
management
fa ul t
TIMER
Reset
Down
gr a nd
reset
Up
V CCstop
CsS top
BO r e se t
+
+
−
−
VBO
IpFlag
PW Mreset
VOVP
Vclamp
Rclamp
clamp
VDD
IBO
Vcc
DRV
GN D
OVP/BO
VCC
V cc aux
ga te
HV